Ozone exhaust system for image forming apparatus

Abstract

An ozone exhaust system in an image forming apparatus having a multiple number of process printing units, includes: exhaust ducts for exhausting ozone arising in the process printing units. In the ozone exhaust system, the exhaust ducts are mainly constituted of process printing unit's side exhaust ducts provided respectively along multiple charger cases and a main exhaust duct to which the process printing unit's side exhaust ducts are connected, and the process printing unit's side exhaust ducts are constructed so that the air current that flows into the charger cases and the air current that flows from the process printing unit's side exhaust ducts into the main exhaust duct are directed in the same direction.

Description

[0001]This Nonprovisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No. 2004-309692 filed in Japan on 25 Oct. 2004, the entire contents of which are hereby incorporated by reference.BACKGROUND OF THE INVENTION[0002](1) Field of the Invention[0003]The present invention relates to an ozone exhaust system for image forming apparatus, and in particular relates to an ozone exhaust system for exhausting ozone arising from a process printing unit of an image forming apparatus.[0004](2) Description of the Prior Art[0005]In conventional image forming apparatus, voltage application using high voltage sources has been practiced in order to provide electric charge on the photoreceptor in the process printing unit. It is well known that during this process ozone gas will arise from electric field generators (charger wires, needles of needle electrodes, etc.).[0006]Ozone not only has a harmful effect on human body and environment, but also causes damage to photoco...

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